Mouth piece assembly

Abstract

A mouth piece assembly includes a mouth piece unit having a pivot which is pivotably connected to a first connector so that the mouth piece unit is pivotable about an axis of the pivot relative to the first connector. The first connector is pivotably inserted into a second connector so that the first connector is pivotable about an axis of the second connector. The two respective axes are perpendicular to each other. A locking key is connected to the second connector and engaged with the first connector inserted into the second connector. The mouth piece unit can be pivoted in two different directions and the volume of liquid sucked from the container is not changed.

1. A mouth piece assembly comprising:
 a mouth piece unit having a pivot connected to a first end thereof and a hollow tube extending perpendicularly from the pivot, the hollow tube communicating with the pivot, a seal ring mounted to the hollow tube; 
 a first connector having an insertion slot defined axially in a first end thereof and a passage defined axially in the first connector and communicating with the insertion slot, a central hole defined through one of two parts separated by the insertion slot and communicating with the insertion slot, the pivot inserted into the insertion slot and the hollow tube inserted into the central hole, a second end of the first connector having a first groove and a second groove defined in an outside thereof, a seal ring engaged with the second groove, and 
 a second connector having a body at a first end thereof and an engaging slot defined in an outside of the body, a locking key removably engaged with the engaging slot, the second end of the first connector inserted into the body and the locking key engaged with the first groove, 
 wherein an end wall is located in the engaging slot and an engaging portion extends from the end wall, a guide rib is located in the engaging slot and located opposite to the engaging portion, the locking key is a C-shaped member and has two hook portions on one end thereof and a guide slot is defined in an inside of the other end of the locking key, the hook portions are engaged with the engaging portion and stopped by the end wall, the guide rib is movably engaged with the guide slot, and a connection tube is connected to the second end of the second connector, and 
 wherein the second connector is connected to a cap which has a separation board on a top thereof, an engaging slot is defined in the cap and a locking member is engaged with the engaging slot, the locking member has an extension plate extending from one end thereof and a locking plate is connected to the other end of the locking member, a spring plate is located between the extension plate and the locking plate, a protrusion extends from the locking plate, the engaging slot has multiple air inlets defined in an inner surface thereof and an air valve is cooperated with the air inlets, a hole is defined in an end of the engaging slot and through the cap, the second connector is engaged with the hole and a pipe is connected with the hole, the engaging slot is located on one side of the separation board and a finger hole is defined in the other side of the separation board. 
 
     
     
       2. The assembly as claimed in  claim 1 , wherein a connection end extends from a first end of a body of the pivot and a mouth piece is connected to the connection end, a spring is received in the body of the pivot and has an end contacting against a seal member in the connection end, a seal ring is mounted to a first end of the seal member which includes a plurality of ribs extending radially therefrom, a seal end is connected to a second end of the seal member, a collar is received in the insertion end and the first end of the seal member is engaged with the collar, the seal end removably seals an outlet of the mouth piece. 
     
     
       3. The assembly as claimed in  claim 1 , wherein an annular third groove is defined in an outside of the cap, a dust cap is mounted to the cap and includes a ring portion, a boss extends from an inside of the ring portion and engaged with the third groove. 
     
     
       4. The assembly as claimed in  claim 1 , wherein a male connector is connected to the second connector on the cap and has a connection tube extending from a first end thereof, a fourth groove is defined in an mediate portion of the male connector and a fifth groove is defined in an outside of a second end of the male connector, a seal ring is engaged with the fifth groove, the second end of the male connector is inserted in the hole in the cap, an extension pipe has one end connected to the connection tube and the other end of the extension pipe is connected to the connection tube of the second connector.